Who Killed John F. Kennedy? Was Lee Harvey Oswald In M.K Ultra?

Who killed John F. Kennedy Was It Really Lee Harvey Oswald? Or was there another man involved? Jack ruby killed lee Harvey Oswald for the assassination of John f Kennedy and was allowed to carry a gun Dallas police station in a basement where lee Harvey Oswald was being transported by local p.d in that area at this time jack ruby let off 1 shot up close and personal with a .38 colt revolver leaving him lifeless... also did Justin bibber really make a Diddy party song? Was he in the club with Odell Beckham jr. ?